Options for key usage in certificate
[FlagsAttribute] public enum KeyUsageOptions
<FlagsAttribute> _ Public Enumeration KeyUsageOptions
| Member name | Description | |
|---|---|---|
| None | Key usage extension is not included. | |
| DigitalSignature | subject public key is used for verifying digital signatures. | |
| NonRepudiation | subject public key is used to verify digital signatures used to provide a non-repudiation service. | |
| KeyEncipherment | subject public key is used for enciphering private or secret keys, i.e., for key transport. | |
| DataEncipherment | subject public key is used for directly enciphering raw user data (uncommon). | |
| KeyAgreement | subject public key is used for key agreement. | |
| KeyCertSign | subject public key is used for verifying signatures on public key certificates. | |
| CrlSign | subject public key is used for verifying signatures on certificate revocation lists. | |
| EncipherOnly | subject public key may be used only for enciphering data while performing key agreement (only if keyAgreement bit is also set). | |
| DecipherOnly | subject public key may be used only for deciphering data while performing key agreement (only if keyAgreement bit is also set). |